> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cryptoprocessing.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Reference letter

If you need to confirm that you're using CryptoProcessing's services — for a bank, auditor, or other third party — you can request a reference letter from your account manager.

Email your account manager at [accounts@cryptoprocessing.com](mailto:accounts@cryptoprocessing.com) with the details of what you need the letter to cover. Besides confirming that you're a client, a reference letter can also include:

* Confirmation of specific deposit or withdrawal addresses
* Transaction details

You can also request a signed balance statement from your account manager.

Let your account manager know exactly what you need included so they can prepare it for you.